[INFO] cloning repository https://github.com/efugier/netchat [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/efugier/netchat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fefugier%2Fnetchat", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fefugier%2Fnetchat'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 79456fea4dd42560055fa1f8bef470884a0aca24 [INFO] checking efugier/netchat against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fefugier%2Fnetchat" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/efugier/netchat on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/efugier/netchat [INFO] finished tweaking git repo https://github.com/efugier/netchat [INFO] tweaked toml for git repo https://github.com/efugier/netchat written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/efugier/netchat already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded color-backtrace v0.1.3 [INFO] [stderr] Downloaded gag v0.1.10 [INFO] [stderr] Downloaded shrinkwraprs v0.2.1 [INFO] [stderr] Downloaded tui v0.5.0 [INFO] [stderr] Downloaded syn v0.12.15 [INFO] [stderr] Downloaded syn v0.15.32 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c9d099899de121f5c5f0545a8ac8fd5cca6bc83f5eb7e4ad6ea8b5ff8c00d460 [INFO] running `Command { std: "docker" "start" "-a" "c9d099899de121f5c5f0545a8ac8fd5cca6bc83f5eb7e4ad6ea8b5ff8c00d460", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c9d099899de121f5c5f0545a8ac8fd5cca6bc83f5eb7e4ad6ea8b5ff8c00d460", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c9d099899de121f5c5f0545a8ac8fd5cca6bc83f5eb7e4ad6ea8b5ff8c00d460", kill_on_drop: false }` [INFO] [stdout] c9d099899de121f5c5f0545a8ac8fd5cca6bc83f5eb7e4ad6ea8b5ff8c00d460 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 932614dfdba44d9a8b394a64f6166a6df2a6a7c23a1dad668144f8479609def9 [INFO] running `Command { std: "docker" "start" "-a" "932614dfdba44d9a8b394a64f6166a6df2a6a7c23a1dad668144f8479609def9", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.51 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling proc-macro2 v0.4.27 [INFO] [stderr] Checking cfg-if v0.1.7 [INFO] [stderr] Compiling syn v0.15.32 [INFO] [stderr] Compiling cc v1.0.35 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Checking ucd-util v0.1.3 [INFO] [stderr] Compiling ryu v0.2.7 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Compiling unicode-segmentation v1.2.1 [INFO] [stderr] Compiling serde v1.0.90 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Compiling proc-macro2 v0.2.3 [INFO] [stderr] Checking regex-syntax v0.6.6 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_jitter v0.1.3 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling backtrace v0.3.15 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking utf8-ranges v1.0.2 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Compiling quote v0.4.2 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Checking either v1.5.2 [INFO] [stderr] Checking rustc-demangle v0.1.14 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking remove_dir_all v0.5.1 [INFO] [stderr] Checking humantime v1.2.0 [INFO] [stderr] Compiling syn v0.12.15 [INFO] [stderr] Checking itertools v0.8.0 [INFO] [stderr] Compiling itertools v0.7.11 [INFO] [stderr] Checking cassowary v0.3.0 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Checking termcolor v1.0.4 [INFO] [stderr] Checking itoa v0.4.3 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking dirs v1.0.5 [INFO] [stderr] Checking aho-corasick v0.7.3 [INFO] [stderr] Checking termion v1.5.1 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking term v0.5.2 [INFO] [stderr] Checking tui v0.5.0 [INFO] [stderr] Checking tempfile v3.0.7 [INFO] [stderr] Checking color-backtrace v0.1.3 [INFO] [stderr] Checking gag v0.1.10 [INFO] [stderr] Compiling shrinkwraprs v0.2.1 [INFO] [stderr] Checking env_logger v0.6.1 [INFO] [stderr] Compiling serde_derive v1.0.90 [INFO] [stderr] Compiling structopt-derive v0.2.15 [INFO] [stderr] Checking structopt v0.2.15 [INFO] [stderr] Checking serde_json v1.0.39 [INFO] [stderr] Checking netchat v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `log` is imported redundantly [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use log; [INFO] [stdout] | ^^^ the item `log` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `log` is imported redundantly [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use log; [INFO] [stdout] | ^^^ the item `log` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.37s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.12.15 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "932614dfdba44d9a8b394a64f6166a6df2a6a7c23a1dad668144f8479609def9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "932614dfdba44d9a8b394a64f6166a6df2a6a7c23a1dad668144f8479609def9", kill_on_drop: false }` [INFO] [stdout] 932614dfdba44d9a8b394a64f6166a6df2a6a7c23a1dad668144f8479609def9 [INFO] checking efugier/netchat against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fefugier%2Fnetchat" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/efugier/netchat on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/efugier/netchat [INFO] finished tweaking git repo https://github.com/efugier/netchat [INFO] tweaked toml for git repo https://github.com/efugier/netchat written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/efugier/netchat already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8969aaeecb6b48d331eeec15033fb82e38c96f39f0adbd03ebb3205ee9142b46 [INFO] running `Command { std: "docker" "start" "-a" "8969aaeecb6b48d331eeec15033fb82e38c96f39f0adbd03ebb3205ee9142b46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8969aaeecb6b48d331eeec15033fb82e38c96f39f0adbd03ebb3205ee9142b46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8969aaeecb6b48d331eeec15033fb82e38c96f39f0adbd03ebb3205ee9142b46", kill_on_drop: false }` [INFO] [stdout] 8969aaeecb6b48d331eeec15033fb82e38c96f39f0adbd03ebb3205ee9142b46 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5a183e3ee2e5287165f76b8cc082323798423183e1877dddf88dc52bba1f7533 [INFO] running `Command { std: "docker" "start" "-a" "5a183e3ee2e5287165f76b8cc082323798423183e1877dddf88dc52bba1f7533", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.51 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling proc-macro2 v0.4.27 [INFO] [stderr] Checking cfg-if v0.1.7 [INFO] [stderr] Compiling syn v0.15.32 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling cc v1.0.35 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Compiling serde v1.0.90 [INFO] [stderr] Compiling unicode-segmentation v1.2.1 [INFO] [stderr] Compiling ryu v0.2.7 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking ucd-util v0.1.3 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Compiling proc-macro2 v0.2.3 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking regex-syntax v0.6.6 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.3 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking utf8-ranges v1.0.2 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling backtrace v0.3.15 [INFO] [stderr] Checking either v1.5.2 [INFO] [stderr] Checking remove_dir_all v0.5.1 [INFO] [stderr] Checking rustc-demangle v0.1.14 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Compiling quote v0.4.2 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking humantime v1.2.0 [INFO] [stderr] Compiling itertools v0.7.11 [INFO] [stderr] Compiling syn v0.12.15 [INFO] [stderr] Checking aho-corasick v0.7.3 [INFO] [stderr] Checking itertools v0.8.0 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking dirs v1.0.5 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking termion v1.5.1 [INFO] [stderr] Checking cassowary v0.3.0 [INFO] [stderr] Checking termcolor v1.0.4 [INFO] [stderr] Checking term v0.5.2 [INFO] [stderr] Checking itoa v0.4.3 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking tempfile v3.0.7 [INFO] [stderr] Checking tui v0.5.0 [INFO] [stderr] Checking gag v0.1.10 [INFO] [stderr] Checking env_logger v0.6.1 [INFO] [stderr] Checking color-backtrace v0.1.3 [INFO] [stderr] Compiling shrinkwraprs v0.2.1 [INFO] [stderr] Compiling serde_derive v1.0.90 [INFO] [stderr] Compiling structopt-derive v0.2.15 [INFO] [stderr] Checking structopt v0.2.15 [INFO] [stderr] Checking serde_json v1.0.39 [INFO] [stderr] Checking netchat v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `log` is imported redundantly [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use log; [INFO] [stdout] | ^^^ the item `log` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `log` is imported redundantly [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use log; [INFO] [stdout] | ^^^ the item `log` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.33s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.12.15 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "5a183e3ee2e5287165f76b8cc082323798423183e1877dddf88dc52bba1f7533", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5a183e3ee2e5287165f76b8cc082323798423183e1877dddf88dc52bba1f7533", kill_on_drop: false }` [INFO] [stdout] 5a183e3ee2e5287165f76b8cc082323798423183e1877dddf88dc52bba1f7533